So Bigmills and jstarks are the only people who touched on the capsule filtration process using a perilsatic pump. They said that the Whatman Polycap 36 AS Nylon was the best or the Pall Acropak 200. The thing is the whatman Polycap 36 AS nylon is hydrophilic which supposedly your not supposed to use supposed to use hydrophobic for oil based and the other one they recommended are all PES which are supposed to breakdown and degrade using ba and bb. So im trying to figure out if the nylon hydrophilic polycaps are ok or were the ones they were using back then different than what's available now.